CN221263521U - Air-cooled permanent magnet synchronous motor - Google Patents

Air-cooled permanent magnet synchronous motor Download PDF

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Publication number
CN221263521U
CN221263521U CN202322908780.7U CN202322908780U CN221263521U CN 221263521 U CN221263521 U CN 221263521U CN 202322908780 U CN202322908780 U CN 202322908780U CN 221263521 U CN221263521 U CN 221263521U
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air
body shell
duct
engine body
air duct
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CN202322908780.7U
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Chinese (zh)
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贾天姿
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North China University of Water Resources and Electric Power
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North China University of Water Resources and Electric Power
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Abstract

The utility model discloses an air-cooled permanent magnet synchronous motor, which comprises a motor body shell, wherein a power shaft is rotatably arranged in the motor body, a heat dissipation air duct is arranged in the outer wall of the motor body shell, the tail parts of the motor body shell are respectively arranged at the inlet and the outlet of the heat dissipation air duct, a first fan blade is arranged at the tail part of the motor body shell and fixedly arranged at the tail end of the power shaft, a guide cover is fixedly arranged at the tail part of the motor body shell, a baffle plate is fixedly arranged in the guide cover, an inner cavity of the guide cover is divided into an air inlet cavity and an air outlet cavity by the baffle plate, a window is formed in the surface of the baffle plate, and a second fan blade is rotatably arranged in the window. This motor utilizes the second flabellum in the kuppe to inject the circulated air in the cooling air duct, simultaneously, and motor operation makes first flabellum rotatory, dispels the heat for the kuppe surface to realize carrying out initiative radiating effect to engine body shell, solved prior art and only cooled off the radiating effect poor through inside cooling air duct, the single problem of form.

Description

Air-cooled permanent magnet synchronous motor
Technical Field
The utility model relates to the technical field of permanent magnet synchronous motors, in particular to an air-cooled permanent magnet synchronous motor.
Background
The permanent magnet synchronous motor adopts permanent magnet excitation, has incomparable advantages of an electrically excited motor and also has defects, such as a patent publication No. CN113644756A, and the disclosed air-cooled permanent magnet synchronous motor comprises a motor shell, a motor stator and a motor permanent magnet rotor which is integrally installed with a motor shaft, wherein the motor shell comprises a motor front cover, a motor cylinder body and a motor rear cover which are integrally installed, and the motor stator is positioned at the periphery of the motor permanent magnet rotor and is pressed in the motor cylinder body; wherein, the motor cylinder is formed by welding plates, the motor rear cover is provided with a cooling air inlet, the motor cylinder close to one side of the motor front cover is provided with a cylinder cooling air outlet in the circumferential direction, and the cylinder cooling air outlet is positioned at the periphery of the cooling air inlet; meanwhile, the motor stator is provided with an internal cooling air duct which is respectively communicated with the cooling air inlet and the cylinder cooling air outlet; the invention has compact structure, improves the problem of poor heat dissipation effect and has low manufacturing cost.
However, in the actual use process, the internal structure of the motor is compact, and the cooling is far from enough only by the arranged internal cooling air duct, so that the external heat dissipation is also important, the existing heat dissipation fins arranged on the outer side of the machine body are all passive heat dissipation, the active heat dissipation function cannot be realized, the problems of single heat dissipation form and poor heat dissipation effect are caused, and the problems of further improvement are to be solved.
Disclosure of utility model
The utility model aims to provide an air-cooled permanent magnet synchronous motor so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an forced air cooling PMSM, includes the engine body shell of motor, and the engine body shell internal rotation is installed the power shaft, set up the heat dissipation wind channel in the outer wall of engine body shell, the entry in heat dissipation wind channel and export all are provided with the afterbody of engine body shell, and the afterbody of engine body shell is provided with first flabellum, and first flabellum fixed mounting is at the tail end of power shaft.
The tail part of the engine body shell is fixedly provided with a guide cover, the guide cover is internally and fixedly provided with a baffle plate, the inner cavity of the guide cover is divided into an air inlet cavity and an air outlet cavity by the baffle plate, the surface of the baffle plate is provided with a window, a second fan blade is rotationally arranged in the window, the window is communicated with the air inlet cavity and the air outlet cavity, an inlet and an outlet of the air inlet cavity and an outlet of the air outlet cavity are respectively communicated with an inlet and an outlet of a heat dissipation air duct through a conversion ring, the tail part of a power shaft is fixedly provided with a first magnetic chuck, a second magnetic chuck is fixedly arranged on a rotating shaft of the second fan blade, and the first magnetic chuck and the second magnetic chuck magnetically adsorb, and when the power shaft of a motor rotates, the second fan blade in the guide cover is driven to rotate.
Preferably, a stator is fixedly arranged in the engine body shell, and a rotor is fixedly arranged on the surface of the power shaft.
Preferably, the heat dissipation air duct is formed by a plurality of air duct holes, the air duct holes are divided into an air inlet air duct and an air outlet air duct, the air inlet air duct is communicated with the air outlet air duct, the opening parts of the air inlet air duct and the air outlet air duct are arranged in an annular shape, and the air inlet air duct and the air outlet air duct are all arranged on the tail end face of the machine body shell.
Preferably, the surface of the conversion ring is provided with a plurality of through holes, and each through hole is aligned with the opening parts of the air inlet duct and the air outlet duct respectively.
Preferably, a plurality of first air openings and second air openings are formed in the end face of the air guide sleeve, the first air openings and the second air openings are in annular arrangement, the first air openings are communicated with the air inlet cavity, the second air openings are communicated with the air outlet cavity, the first air openings are communicated with the air inlet air channel through the through holes, and the second air openings are communicated with the air outlet air channel through the through holes.
Preferably, the end face of the air guide sleeve is provided with a cooling air channel which penetrates left and right, the air guide sleeve is fixed with the tail of the engine body shell through bolts, and the air guide sleeve and the engine body shell clamp the conversion ring in the middle.
Advantageous effects
The utility model provides an air-cooled permanent magnet synchronous motor, which has the following beneficial effects:
1. This forced air cooling PMSM through setting up the heat dissipation wind channel in engine body shell's outer wall, utilizes the second flabellum in the kuppe to pour into circulating air into in the heat dissipation wind channel into, simultaneously, and motor operation makes first flabellum rotatory, dispels the heat for the kuppe surface to realize carrying out initiative radiating effect to engine body shell, solved prior art and only cool off the radiating effect poor through inside cooling wind channel, the single problem of form, the cooling is more effective.
2. This forced air cooling PMSM through setting up first magnetic chuck and second magnetic chuck, and when the motor was operated, first magnetic chuck and second magnetic chuck were under the effect of magnetic attraction power, and the drive second flabellum was rotatory, utilized this non-rigid contact's power transmission mode, made the inner chamber of heat dissipation wind channel and kuppe form a cyclic enclosure space, but the problem that greatly reduced heat dissipation wind channel blockked up, use safer, reliable.
Drawings
FIG. 1 is a schematic view of the present utility model in a front cross-section;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
FIG. 3 is a schematic side sectional view of the housing of the present utility model;
Fig. 4 is a schematic side view of the air guide sleeve of the present utility model.
In the figure: the cooling fan comprises a machine body shell 1, a power shaft 2, a heat dissipation air duct 3, a first fan blade 4, a guide cover 5, a partition plate 6, an air inlet cavity 7, an air outlet cavity 8, a second fan blade 9, a conversion ring 10, a first magnetic chuck 11, a second magnetic chuck 12, a stator 13, a rotor 14, an air inlet duct 15, an air outlet duct 16, a through hole 17, a first air port 18, a second air port 19 and a cooling air duct 20.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: an air-cooled permanent magnet synchronous motor comprises a machine body shell 1 of the motor, a power shaft 2 is rotatably installed in the machine body shell 1, a stator 13 is fixedly installed in the machine body shell 1, and a rotor 14 is fixedly installed on the surface of the power shaft 2.
A heat dissipation air duct 3 is formed in the outer wall of the engine body shell 1, the tail of the engine body shell 1 is arranged at the inlet and the outlet of the heat dissipation air duct 3, a first fan blade 4 is arranged at the tail of the engine body shell 1, and the first fan blade 4 is fixedly arranged at the tail end of the power shaft 2; the heat dissipation air duct 3 is formed by a plurality of air duct holes, the air duct holes are divided into an air inlet air duct 15 and an air outlet air duct 16, the air inlet air duct 15 is communicated with the air outlet air duct 16, the opening parts of the air inlet air duct 15 and the air outlet air duct 16 are arranged in a ring shape, and the air inlet air duct and the air outlet air duct 16 are all arranged on the tail end face of the machine body shell 1.
The tail part of the engine body shell 1 is fixedly provided with a guide cover 5, the guide cover 5 is internally and fixedly provided with a baffle plate 6, the baffle plate 6 divides the inner cavity of the guide cover 5 into an air inlet cavity 7 and an air outlet cavity 8, the surface of the baffle plate 6 is provided with a window, a second fan blade 9 is rotationally arranged in the window, the window is communicated with the air inlet cavity 7 and the air outlet cavity 8, the inlet and outlet of the air inlet cavity 7 and the air outlet cavity 8 are respectively communicated with the inlet and the outlet of the heat dissipation air duct 3 through a conversion ring 10,
Specifically, a plurality of through holes 17 are formed in the surface of the conversion ring 10, the through holes 17 are aligned with the air inlet duct 15 and the opening of the air outlet duct 16 respectively, a plurality of first air openings 18 and second air openings 19 are formed in the end face of the air guide sleeve 5, the first air openings 18 and the second air openings 19 are annularly arranged, the first air openings 18 are communicated with the air inlet cavity 7, the second air openings 19 are communicated with the air outlet cavity 8, the first air openings 18 are communicated with the air inlet duct 15 through the through holes 17, and the second air openings 19 are communicated with the air outlet duct 16 through the through holes 17.
The end face of the air guide sleeve 5 is provided with a cooling air duct 20 penetrating left and right, the air guide sleeve 5 is fixed with the tail of the engine body shell 1 through bolts, and the two clamp the conversion ring 10 in the middle.
The tail of the power shaft 2 is fixedly provided with a first magnetic chuck 11, the rotating shaft of the second fan blade 9 is fixedly provided with a second magnetic chuck 12, the first magnetic chuck 11 and the second magnetic chuck 12 are magnetically adsorbed, the air-cooled permanent magnet synchronous motor is operated, when the power shaft 2 rotates, the second fan blade 9 in the air guide cover 5 is driven to rotate, air in the air outlet cavity 8 is pushed into the air inlet duct 15 and then flows into the air outlet duct 16, and finally returns to the air inlet cavity 7, so that a cooling circulation loop for cooling the engine body shell 1 is formed.
Through setting up first magnetic chuck 11 and second magnetic chuck 12, when the motor is operated, first magnetic chuck 11 and second magnetic chuck 12 are under the effect of magnetic attraction power, and drive second flabellum 9 is rotatory, utilizes this non-rigid contact's power transmission mode, makes the inner chamber of heat dissipation wind channel 3 and kuppe 5 form a cyclic enclosure space, can greatly reduced the problem that heat dissipation wind channel 3 blockked up, uses safelyr, reliable.
This forced air cooling PMSM through set up heat dissipation wind channel 3 in the outer wall at engine body shell 1, utilizes second flabellum 9 in the kuppe 5 to pour into circulating air into in the heat dissipation wind channel 3, simultaneously, and motor operation makes first flabellum 4 rotatory, carries out the forced air cooling heat dissipation for kuppe 5 surface to realize carrying out initiative radiating effect to engine body shell 1, solved prior art and only cooled off the radiating effect poor through inside refrigerated mode, the single problem of form, the cooling is more effective.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an forced air cooling PMSM, includes engine body shell (1) of motor, and power shaft (2), its characterized in that are installed in engine body shell (1) rotation: a heat dissipation air duct (3) is formed in the outer wall of the engine body shell (1), the tail of the engine body shell (1) is arranged at the inlet and the outlet of the heat dissipation air duct (3), a first fan blade (4) is arranged at the tail of the engine body shell (1), and the first fan blade (4) is fixedly arranged at the tail end of the power shaft (2);
The tail of engine body shell (1) fixed mounting has kuppe (5), and fixed mounting has baffle (6) in kuppe (5), and baffle (6) divide into air inlet chamber (7) and air-out chamber (8) with the inner chamber of kuppe (5), and the window has been seted up on the surface of baffle (6) to install second flabellum (9) in the window rotation, the window communicates air inlet chamber (7) and air-out chamber (8), and the access & exit in air inlet chamber (7) and air-out chamber (8) are through conversion ring (10) and the entry and exit intercommunication in heat dissipation wind channel (3) respectively, and the afterbody fixed mounting of power shaft (2) has first magnetic chuck (11), and fixed mounting has second magnetic chuck (12) in the pivot of second flabellum (9), and first magnetic chuck (11) and second magnetic chuck (12) magnetic adsorption drives second flabellum (9) in kuppe (5) when power shaft (2) of motor rotate.
2. An air-cooled permanent magnet synchronous motor according to claim 1, wherein: the stator (13) is fixedly arranged in the engine body shell (1), and the rotor (14) is fixedly arranged on the surface of the power shaft (2).
3. An air-cooled permanent magnet synchronous motor according to claim 2, wherein: the heat dissipation air duct (3) is formed by a plurality of air duct holes, the air duct holes are divided into an air inlet air duct (15) and an air outlet air duct (16), the air inlet air duct (15) is communicated with the air outlet air duct (16), and the opening parts of the air inlet air duct (15) and the air outlet air duct (16) are arranged in a ring shape and are all arranged on the tail end face of the engine body shell (1).
4. An air-cooled permanent magnet synchronous motor according to claim 3, wherein: a plurality of through holes (17) are formed in the surface of the conversion ring (10), and each through hole (17) is aligned with the opening parts of the air inlet duct (15) and the air outlet duct (16) respectively.
5. An air-cooled permanent magnet synchronous motor according to claim 4, wherein: a plurality of first air openings (18) and second air openings (19) are formed in the end face of the air guide sleeve (5), the first air openings (18) and the second air openings (19) are annularly arranged, the first air openings (18) are communicated with the air inlet cavity (7), the second air openings (19) are communicated with the air outlet cavity (8), the first air openings (18) are communicated with the air inlet air channel (15) through the through holes (17), and the second air openings (19) are communicated with the air outlet air channel (16) through the through holes (17).
6. An air-cooled permanent magnet synchronous motor according to claim 5, wherein: the end face of the air guide sleeve (5) is provided with a cooling air duct (20) penetrating left and right, the air guide sleeve (5) is fixed with the tail of the engine body shell (1) through bolts, and the two air guide sleeves clamp the conversion ring (10) in the middle.
CN202322908780.7U 2023-10-30 2023-10-30 Air-cooled permanent magnet synchronous motor Active CN221263521U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322908780.7U CN221263521U (en) 2023-10-30 2023-10-30 Air-cooled permanent magnet synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322908780.7U CN221263521U (en) 2023-10-30 2023-10-30 Air-cooled permanent magnet synchronous motor

Publications (1)

Publication Number Publication Date
CN221263521U true CN221263521U (en) 2024-07-02

Family

ID=91626028

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322908780.7U Active CN221263521U (en) 2023-10-30 2023-10-30 Air-cooled permanent magnet synchronous motor

Country Status (1)

Country Link
CN (1) CN221263521U (en)

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